Methods for washing and processing fruits, vegetables, and other produce with medium chain peroxycarboxylic acid compositions

a technology of peroxycarboxylic acid and composition, which is applied in the direction of detergent compounding agent, halogen oxide/oxyacid, other chemical processes, etc., can solve the problems of organic and microbial contamination, buildup of slime on all water contact surfaces, and water, flume and other transportation or processing equipment may be subject to the growth of unwanted microorganisms, etc., to achieve the effect of reducing microbial contamination

Active Publication Date: 2005-07-14
ECOLAB USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0001] The present invention relates to methods employing compositions including medium chain peroxycarboxylic acid for reducing microbial contamination on fruit, vegetable, or other produce; in waters used to transport or process fruit, vegetable, or other produce; or on surfaces employed in transporting or processing fruit, vegetable, or other produce. The pres

Problems solved by technology

However, often times a major portion of this process water is re-used and is, therefore, subject to organic and microbial contamination.
In either situation, the process water becomes contaminated with organic matter from the food, providing nutrients for microbial growth in the water.
Given the nature of the food transported as well as the presence of sediments and soluble materials, the water, flume, and other transport or processing equipment may be subject to the growth of unwanted microorganisms.
These microorganisms are generally undesirable to the transported food, the water, the flume and may cause buildup on all water contact surfac

Method used

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  • Methods for washing and processing fruits, vegetables, and other produce with medium chain peroxycarboxylic acid compositions
  • Methods for washing and processing fruits, vegetables, and other produce with medium chain peroxycarboxylic acid compositions
  • Methods for washing and processing fruits, vegetables, and other produce with medium chain peroxycarboxylic acid compositions

Examples

Experimental program
Comparison scheme
Effect test

example 1

Compositions Including Medium Chain Peroxycarboxylic Acid and Solubilizer

[0229] Tables 1-5 present illustrative examples of the present compositions including medium chain peroxycarboxylic acid and solubilizer.

TABLE 1Examples of Compositions Including Solvent SolubilizerIngredientABCDEMedium Chain1.81.61.41.62.9Peroxycarboxylic AcidMedium Chain3.43.63.73.62.4Carboxylic AcidSolubilizer6040606040Carrier2522252222Oxidizing Agent7.06.67.06.96.9Acidulant2252525Stabilizing Agent1.21.21.21.21.2

[0230]

TABLE 2Examples of Compositions Including Solvent Solubilizer and Surfactant SolubilizerIngredientFGHIJKLMNOPQMedium Chain0.80.71.11.10.92.11.60.70.95.0not5.0Peroxycarboxylic AcidmeasuredMedium Chain4.34.44.04.04.24.23.14.44.20.20.2Carboxylic AcidSolvent Solubilizer04040404244423429282828Surfactant Solubilizer45525867646610Carrier373033302921242628282624Oxidizing Agent7.06.96.86.96.16.46.56.76.56.98.76.9Acidulant5777815152126252525Stabilizing Agent1.26661.21.21.21.21.21.21.21.2

[0231] In each...

example 2

Stability of Compositions Including Medium Chain Peroxycarboxylic Acid and Solubilizer

[0249] Compositions according to the present invention were evaluated and demonstrated physical stability and advantageous stability of the medium chain peroxycarboxylic acid.

Materials and Methods

[0250] Several of the present medium chain peroxycarboxylic acid compositions were evaluated for stability of the medium chain peroxycarboxylic acid. A sealed container including the composition was placed in an oven at an elevated temperature or was left at room temperature for a period of time. The temperatures and times are reported in the tables below. One week at 60° C. can be considered equivalent to a year at room temperature (RT). The quantity of peroxycarboxylic acid was determined by titration.

[0251] Several of the present medium chain peroxycarboxylic acid compositions were also evaluated for physical stability. The sample were visually inspected at intervals at which peroxycarboxylic acid ...

example 3

Shear Thinning Viscosity of Compositions Including Medium Chain Peroxycarboxylic Acid and Solubilizer

[0259] Compositions according to the present invention were evaluated and demonstrated to have advantageous shear thinning viscosity, which is characteristic of microemulsions.

Materials and Methods

[0260] Several of the present medium chain peroxycarboxylic acid compositions were evaluated for viscosity as a function of rate of spindle rotation using an LVT viscometer and an N2 spindle. The temperature of the compositions was room temperature (about 75° F.).

Results

[0261] The results obtained for determinations of viscosity of the present compositions are reported below in Table 7. Decreasing viscosity with increasing spindle rotation rate indicates shear thinning, which is characteristic of a microemulsion. Each of the compositions tested showed shear thinning viscosity.

TABLE 9Shear Thinning Viscosity of Composition LLViscosityViscosityrpm(cp)rpm(cp)0.63875222601.526002.51952...

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Abstract

The present invention relates to methods employing compositions including medium chain peroxycarboxylic acid for reducing microbial contamination on fruit, vegetable, or other produce; in waters used to transport or process fruit, vegetable, or other produce; or on surfaces employed in transporting or processing fruit, vegetable, or other produce. The present invention also relates to the medium chain peroxycarboxylic acid compositions. The methods include applying a medium chain peroxycarboxylic acid composition to fruit, vegetable, or other produce; into waters used to transport or process fruit, vegetable, or other produce; or to surfaces employed in transporting or processing fruit, vegetable, or other produce.

Description

FIELD OF THE INVENTION [0001] The present invention relates to methods employing compositions including medium chain peroxycarboxylic acid for reducing microbial contamination on fruit, vegetable, or other produce; in waters used to transport or process fruit, vegetable, or other produce; or on surfaces employed in transporting or processing fruit, vegetable, or other produce. The present invention also relates to the medium chain peroxycarboxylic acid compositions. The methods include applying a medium chain peroxycarboxylic acid composition to fruit, vegetable, or other produce; into waters used to transport or process fruit, vegetable, or other produce; or to surfaces employed in transporting or processing fruit, vegetable, or other produce. BACKGROUND OF THE INVENTION [0002] The advent of food processing has long since revolutionized both the availability of foods as well as the expectation of consumers for a large variety of high quality food products. One method for processing...

Claims

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Application Information

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IPC IPC(8): A01N37/16A23B7/154A23L3/3508C01B11/00C07C407/00C07C409/00C09K3/00C11D1/72C11D3/20C11D3/39C11D3/48
CPCA01N37/16A23B7/154A23L3/3508C11D1/72C11D3/2079C11D3/3945C11D3/3947C11D3/48A01N37/02A01N25/30A01N2300/00
Inventor MAN, VICTOR FUK-PONGMAGNUSON, JOSHUA PAUL
Owner ECOLAB USA INC
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